/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2011-2014 Intel Corporation
* Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include "src/shared/util.h"
#include "display.h"
#include "packet.h"
#include "bt.h"
#include "lmp.h"
#define COLOR_OPCODE COLOR_MAGENTA
#define COLOR_OPCODE_UNKNOWN COLOR_WHITE_BG
static const char *get_opcode_str(uint16_t opcode);
static void print_opcode(uint16_t opcode)
{
const char *str;
str = get_opcode_str(opcode);
if (!str)
str = "Unknown";
if (opcode & 0xff00)
print_field("Operation: %s (%u/%u)", str,
opcode >> 8, opcode & 0xff);
else
print_field("Operation: %s (%u)", str, opcode);
}
static void name_req(const void *data, uint8_t size)
{
const struct bt_lmp_name_req *pdu = data;
print_field("Offset: %u", pdu->offset);
}
static void name_rsp(const void *data, uint8_t size)
{
const struct bt_lmp_name_rsp *pdu = data;
char str[15];
memcpy(str, pdu->fragment, 14);
str[14] = '\0';
print_field("Offset: %u", pdu->offset);
print_field("Length: %u", pdu->length);
print_field("Fragment: %s", str);
}
static void accepted(const void *data, uint8_t size)
{
const struct bt_lmp_accepted *pdu = data;
print_opcode(pdu->opcode);
}
static void not_accepted(const void *data, uint8_t size)
{
const struct bt_lmp_not_accepted *pdu = data;
print_opcode(pdu->opcode);
packet_print_error("Error code", pdu->error);
}
static void clkoffset_req(const void *data, uint8_t size)
{
}
static void clkoffset_rsp(const void *data, uint8_t size)
{
const struct bt_lmp_clkoffset_rsp *pdu = data;
print_field("Clock offset: 0x%4.4x", le16_to_cpu(pdu->offset));
}
static void detach(const void *data, uint8_t size)
{
const struct bt_lmp_detach *pdu = data;
packet_print_error("Error code", pdu->error);
}
static void au_rand(const void *data, uint8_t size)
{
const struct bt_lmp_au_rand *pdu = data;
packet_hexdump(pdu->number, 16);
}
static void sres(const void *data, uint8_t size)
{
const struct bt_lmp_sres *pdu = data;
packet_hexdump(pdu->response, 4);
}
static void encryption_mode_req(const void *data, uint8_t size)
{
const struct bt_lmp_encryption_mode_req *pdu = data;
const char *str;
switch (pdu->mode) {
case 0x00:
str = "No encryption";
break;
case 0x01:
str = "Encryption";
break;
case 0x02:
str = "Encryption";
break;
default:
str = "Reserved";
break;
}
print_field("Mode: %s (%u)", str, pdu->mode);
}
static void encryption_key_size_req(const void *data, uint8_t size)
{
const struct bt_lmp_encryption_key_size_req *pdu = data;
print_field("Key size: %u", pdu->key_size);
}
static void start_encryption_req(const void *data, uint8_t size)
{
const struct bt_lmp_start_encryption_req *pdu = data;
packet_hexdump(pdu->number, 16);
}
static void stop_encryption_req(const void *data, uint8_t size)
{
}
static void switch_req(const void *data, uint8_t size)
{
const struct bt_lmp_switch_req *pdu = data;
print_field("Instant: 0x%8.8x", le32_to_cpu(pdu->instant));
}
static void unsniff_req(const void *data, uint8_t size)
{
}
static void max_power(const void *data, uint8_t size)
{
}
static void min_power(const void *data, uint8_t size)
{
}
static void auto_rate(const void *data, uint8_t size)
{
}
static void preferred_rate(const void *data, uint8_t size)
{
const struct bt_lmp_preferred_rate *pdu = data;
const char *str;
str = (pdu->rate & 0x01) ? "do not use FEC" : "use FEC";
print_field("Basic data rate: %s (0x%02x)", str, pdu->rate & 0x01);
switch ((pdu->rate & 0x06) >> 1) {
case 0:
str = "No packet-size preference available";
break;
case 1:
str = "use 1-slot packets";
break;
case 2:
str = "use 3-slot packets";
break;
case 3:
str = "use 5-slot packets";
break;
}
print_field("Basic data rate: %s (0x%02x)", str, pdu->rate & 0x06);
switch ((pdu->rate & 0x11) >> 3) {
case 0:
str = "use DM1 packets";
break;
case 1:
str = "use 2 Mb/s packets";
break;
case 2:
str = "use 3 MB/s packets";
break;
case 3:
str = "reserved";
break;
}
print_field("Enhanced data rate: %s (0x%2.2x)", str, pdu->rate & 0x11);
switch ((pdu->rate & 0x60) >> 5) {
case 0:
str = "No packet-size preference available";
break;
case 1:
str = "use 1-slot packets";
break;
case 2:
str = "use 3-slot packets";
break;
case 3:
str = "use 5-slot packets";
break;
}
print_field("Enhanced data rate: %s (0x%2.2x)", str, pdu->rate & 0x60);
}
static void version_req(const void *data, uint8_t size)
{
const struct bt_lmp_version_req *pdu = data;
packet_print_version("Version", pdu->version,
"Subversion", le16_to_cpu(pdu->subversion));
packet_print_company("Company", le16_to_cpu(pdu->company));
}
static void version_res(const void *data, uint8_t size)
{
const struct bt_lmp_version_res *pdu = data;
packet_print_version("Version", pdu->version,
"Subversion", le16_to_cpu(pdu->subversion));
packet_print_company("Company", le16_to_cpu(pdu->company));
}
static void features_req(const void *data, uint8_t size)
{
const struct bt_lmp_features_req *pdu = data;
packet_print_features_lmp(pdu->features, 0x00);
}
static void features_res(const void *data, uint8_t size)
{
const struct bt_lmp_features_res *pdu = data;
packet_print_features_lmp(pdu->features, 0x00);
}
static void max_slot(const void *data, uint8_t size)
{
const struct bt_lmp_max_slot *pdu = data;
print_field("Slots: 0x%4.4x", pdu->slots);
}
static void max_slot_req(const void *data, uint8_t size)
{
const struct bt_lmp_max_slot_req *pdu = data;
print_field("Slots: 0x%4.4x", pdu->slots);
}
static void timing_accuracy_req(const void *data, uint8_t size)
{
}
static void timing_accuracy_res(const void *data, uint8_t size)
{
const struct bt_lmp_timing_accuracy_res *pdu = data;
print_field("Drift: %u ppm", pdu->drift);
print_field("Jitter: %u usec", pdu->jitter);
}
static void setup_complete(const void *data, uint8_t size)
{
}
static void use_semi_permanent_key(const void *data, uint8_t size)
{
}
static void host_connection_req(const void *data, uint8_t size)
{
}
static void slot_offset(const void *data, uint8_t size)
{
const struct bt_lmp_slot_offset *pdu = data;
print_field("Offset: %u usec", le16_to_cpu(pdu->offset));
packet_print_addr("Address", pdu->bdaddr, false);
}
static void page_scan_mode_req(const void *data, uint8_t size)
{
const struct bt_lmp_page_scan_mode_req *pdu = data;
const char *str;
switch (pdu->scheme) {
case 0x00:
str = "Mandatory";
break;
default:
str = "Reserved";
break;
}
print_field("Paging scheme: %s (%u)", str, pdu->scheme);
if (pdu->scheme == 0x00) {
switch (pdu->settings) {
case 0x00:
str = "R0";
break;
case 0x01:
str = "R1";
break;
case 0x02:
str = "R2";
break;
default:
str = "Reserved";
break;
}
} else
str = "Reserved";
print_field("Paging scheme settings: %s (%u)", str, pdu->settings);
}
static void test_activate(const void *data, uint8_t size)
{
}
static void encryption_key_size_mask_req(const void *data, uint8_t size)
{
}
static void set_afh(const void *data, uint8_t size)
{
const struct bt_lmp_set_afh *pdu = data;
const char *str;
print_field("Instant: %u", le32_to_cpu(pdu->instant));
switch (pdu->mode) {
case 0x00:
str = "Disabled";
break;
case 0x01:
str = "Enabled";
break;
default:
str = "Reserved";
break;
}
print_field("Mode: %s (0x%2.2x)", str, pdu->mode);
packet_print_channel_map_lmp(pdu->map);
}
static void encapsulated_header(const void *data, uint8_t size)
{
const struct bt_lmp_encapsulated_header *pdu = data;
const char *str;
print_field("Major type: %u", pdu->major);
print_field("Minor type: %u", pdu->minor);
if (pdu->major == 0x01) {
switch (pdu->minor) {
case 0x01:
str = "P-192 Public Key";
break;
case 0x02:
str = "P-256 Public Key";
break;
default:
str = "Reserved";
break;
}
print_field(" %s", str);
}
print_field("Length: %u", pdu->length);
}
static void encapsulated_payload(const void *data, uint8_t size)
{
const struct bt_lmp_encapsulated_payload *pdu = data;
packet_hexdump(pdu->data, 16);
}
static void simple_pairing_confirm(const void *data, uint8_t size)
{
const struct bt_lmp_simple_pairing_confirm *pdu = data;
packet_hexdump(pdu->value, 16);
}
static void simple_pairing_number(const void *data, uint8_t size)
{
const struct bt_lmp_simple_pairing_number *pdu = data;
packet_hexdump(pdu->value, 16);
}
static void dhkey_check(const void *data, uint8_t size)
{
const struct bt_lmp_dhkey_check *pdu = data;
packet_hexdump(pdu->value, 16);
}
static void accepted_ext(const void *data, uint8_t size)
{
const struct bt_lmp_accepted_ext *pdu = data;
uint16_t opcode;
switch (pdu->escape) {
case 127:
opcode = LMP_ESC4(pdu->opcode);
break;
default:
return;
}
print_opcode(opcode);
}
static void not_accepted_ext(const void *data, uint8_t size)
{
const struct bt_lmp_not_accepted_ext *pdu = data;
uint16_t opcode;
switch (pdu->escape) {
case 127:
opcode = LMP_ESC4(pdu->opcode);
break;
default:
return;
}
print_opcode(opcode);
print_field("Error code: %u", pdu->error);
}
static void features_req_ext(const void *data, uint8_t size)
{
const struct bt_lmp_features_req_ext *pdu = data;
print_field("Features page: %u", pdu->page);
print_field("Max supported page: %u", pdu->max_page);
packet_print_features_lmp(pdu->features, pdu->page);
}
static void features_res_ext(const void *data, uint8_t size)
{
const struct bt_lmp_features_res_ext *pdu = data;
print_field("Features page: %u", pdu->page);
print_field("Max supported page: %u", pdu->max_page);
packet_print_features_lmp(pdu->features, pdu->page);
}
static void packet_type_table_req(const void *data, uint8_t size)
{
const struct bt_lmp_packet_type_table_req *pdu = data;
const char *str;
switch (pdu->table) {
case 0x00:
str = "1 Mbps only";
break;
case 0x01:
str = "2/3 Mbps";
break;
default:
str = "Reserved";
break;
}
print_field("Table: %s (0x%2.2x)", str, pdu->table);
}
static void channel_classification_req(const void *data, uint8_t size)
{
const struct bt_lmp_channel_classification_req *pdu = data;
const char *str;
switch (pdu->mode) {
case 0x00:
str = "Disabled";
break;
case 0x01:
str = "Enabled";
break;
default:
str = "Reserved";
break;
}
print_field("Reporting mode: %s (0x%2.2x)", str, pdu->mode);
print_field("Min interval: 0x%2.2x", pdu->min_interval);
print_field("Max interval: 0x%2.2x", pdu->max_interval);
}
static void channel_classification(const void *data, uint8_t size)
{
const struct bt_lmp_channel_classification *pdu = data;
char str[21];
int i;
for (i = 0; i < 10; i++)
sprintf(str + (i * 2), "%2.2x", pdu->classification[i]);
print_field("Classification: 0x%s", str);
}
static void pause_encryption_req(const void *data, uint8_t size)
{
}
static void resume_encryption_req(const void *data, uint8_t size)
{
}
static void io_capability_req(const void *data, uint8_t size)
{
const struct bt_lmp_io_capability_req *pdu = data;
const char *str;
packet_print_io_capability(pdu->capability);
switch (pdu->oob_data) {
case 0x00:
str = "No authentication data received";
break;
case 0x01:
str = "Authentication data received";
break;
default:
str = "Reserved";
break;
}
print_field("OOB data: %s (0x%2.2x)", str, pdu->oob_data);
packet_print_io_authentication(pdu->authentication);
}
static void io_capability_res(const void *data, uint8_t size)
{
const struct bt_lmp_io_capability_res *pdu = data;
const char *str;
packet_print_io_capability(pdu->capability);
switch (pdu->oob_data) {
case 0x00:
str = "No authentication data received";
break;
case 0x01:
str = "Authentication data received";
break;
default:
str = "Reserved";
break;
}
print_field("OOB data: %s (0x%2.2x)", str, pdu->oob_data);
packet_print_io_authentication(pdu->authentication);
}
static void numeric_comparison_failed(const void *data, uint8_t size)
{
}
static void passkey_failed(const void *data, uint8_t size)
{
}
static void oob_failed(const void *data, uint8_t size)
{
}
static void power_control_req(const void *data, uint8_t size)
{
const struct bt_lmp_power_control_req *pdu = data;
const char *str;
switch (pdu->request) {
case 0x00:
str = "Decrement power one step";
break;
case 0x01:
str = "Increment power one step";
break;
case 0x02:
str = "Increase to maximum power";
break;
default:
str = "Reserved";
break;
}
print_field("Request: %s (0x%2.2x)", str, pdu->request);
}
static void power_control_res(const void *data, uint8_t size)
{
const struct bt_lmp_power_control_res *pdu = data;
const char *str;
print_field("Response: 0x%2.2x", pdu->response);
switch (pdu->response & 0x03) {
case 0x00:
str = "Not supported";
break;
case 0x01:
str = "Changed one step";
break;
case 0x02:
str = "Max power";
break;
case 0x03:
str = "Min power";
break;
default:
str = "Reserved";
break;
}
print_field(" GFSK: %s", str);
switch ((pdu->response & 0x0c) >> 2) {
case 0x00:
str = "Not supported";
break;
case 0x01:
str = "Changed one step";
break;
case 0x02:
str = "Max power";
break;
case 0x03:
str = "Min power";
break;
default:
str = "Reserved";
break;
}
print_field(" DQPSK: %s", str);
switch ((pdu->response & 0x30) >> 4) {
case 0x00:
str = "Not supported";
break;
case 0x01:
str = "Changed one step";
break;
case 0x02:
str = "Max power";
break;
case 0x03:
str = "Min power";
break;
default:
str = "Reserved";
break;
}
print_field(" 8DPSK: %s", str);
}
static void ping_req(const void *data, uint8_t size)
{
}
static void ping_res(const void *data, uint8_t size)
{
}
struct lmp_data {
uint16_t opcode;
const char *str;
void (*func) (const void *data, uint8_t size);
uint8_t size;
bool fixed;
};
static const struct lmp_data lmp_table[] = {
{ 1, "LMP_name_req", name_req, 1, true },
{ 2, "LMP_name_res", name_rsp, 16, true },
{ 3, "LMP_accepted", accepted, 1, true },
{ 4, "LMP_not_accepted", not_accepted, 2, true },
{ 5, "LMP_clkoffset_req", clkoffset_req, 0, true },
{ 6, "LMP_clkoffset_res", clkoffset_rsp, 2, true },
{ 7, "LMP_detach", detach, 1, true },
{ 8, "LMP_in_rand" },
{ 9, "LMP_comb_key" },
{ 10, "LMP_unit_key" },
{ 11, "LMP_au_rand", au_rand, 16, true },
{ 12, "LMP_sres", sres, 4, true },
{ 13, "LMP_temp_rand" },
{ 14, "LMP_temp_key" },
{ 15, "LMP_encryption_mode_req", encryption_mode_req, 1, true },
{ 16, "LMP_encryption_key_size_req", encryption_key_size_req, 1, true },
{ 17, "LMP_start_encryption_req", start_encryption_req, 16, true },
{ 18, "LMP_stop_encryption_req", stop_encryption_req, 0, true },
{ 19, "LMP_switch_req", switch_req, 4, true },
{ 20, "LMP_hold" },
{ 21, "LMP_hold_req" },
{ 22, "LMP_sniff" },
{ 23, "LMP_sniff_req" },
{ 24, "LMP_unsniff_req", unsniff_req, 0, true },
{ 25, "LMP_park_req" },
{ 26, "LMP_park" },
{ 27, "LMP_set_broadcast_scan_window" },
{ 28, "LMP_modify_beacon" },
{ 29, "LMP_unpark_BD_ADDR_req" },
{ 30, "LMP_unpark_PM_ADDR_req" },
{ 31, "LMP_incr_power_req" },
{ 32, "LMP_decr_power_req" },
{ 33, "LMP_max_power", max_power, 0, true },
{ 34, "LMP_min_power", min_power, 0, true },
{ 35, "LMP_auto_rate", auto_rate, 0, true },
{ 36, "LMP_preferred_rate", preferred_rate, 1, true },
{ 37, "LMP_version_req", version_req, 5, true },
{ 38, "LMP_version_res", version_res, 5, true },
{ 39, "LMP_features_req", features_req, 8, true },
{ 40, "LMP_features_res", features_res, 8, true },
{ 41, "LMP_quality_of_service" },
{ 42, "LMP_quality_of_service_req" },
{ 43, "LMP_SCO_link_req" },
{ 44, "LMP_remove_SCO_link_req" },
{ 45, "LMP_max_slot", max_slot, 1, true },
{ 46, "LMP_max_slot_req", max_slot_req, 1, true },
{ 47, "LMP_timing_accuracy_req", timing_accuracy_req, 0, true },
{ 48, "LMP_timing_accuracy_res", timing_accuracy_res, 2, true },
{ 49, "LMP_setup_complete", setup_complete, 0, true },
{ 50, "LMP_use_semi_permanent_key", use_semi_permanent_key, 0, true },
{ 51, "LMP_host_connection_req", host_connection_req, 0, true },
{ 52, "LMP_slot_offset", slot_offset, 8, true },
{ 53, "LMP_page_mode_req" },
{ 54, "LMP_page_scan_mode_req", page_scan_mode_req, 2, true },
{ 55, "LMP_supervision_timeout" },
{ 56, "LMP_test_activate", test_activate, 0, true },
{ 57, "LMP_test_control" },
{ 58, "LMP_encryption_key_size_mask_req", encryption_key_size_mask_req, 0, true },
{ 59, "LMP_encryption_key_size_mask_res" },
{ 60, "LMP_set_AFH", set_afh, 15, true },
{ 61, "LMP_encapsulated_header", encapsulated_header, 3, true },
{ 62, "LMP_encapsulated_payload", encapsulated_payload, 16, true },
{ 63, "LMP_simple_pairing_confirm", simple_pairing_confirm, 16, true },
{ 64, "LMP_simple_pairing_number", simple_pairing_number, 16, true },
{ 65, "LMP_DHkey_check", dhkey_check, 16, true },
{ 66, "LMP_pause_encryption_aes_req" },
{ LMP_ESC4(1), "LMP_accepted_ext", accepted_ext, 2, true },
{ LMP_ESC4(2), "LMP_not_accepted_ext", not_accepted_ext, 3, true },
{ LMP_ESC4(3), "LMP_features_req_ext", features_req_ext, 10, true },
{ LMP_ESC4(4), "LMP_features_res_ext", features_res_ext, 10, true },
{ LMP_ESC4(5), "LMP_clk_adj" },
{ LMP_ESC4(6), "LMP_clk_adj_ack" },
{ LMP_ESC4(7), "LMP_clk_adj_req" },
{ LMP_ESC4(11), "LMP_packet_type_table_req", packet_type_table_req, 1, true },
{ LMP_ESC4(12), "LMP_eSCO_link_req" },
{ LMP_ESC4(13), "LMP_remove_eSCO_link_req" },
{ LMP_ESC4(16), "LMP_channel_classification_req", channel_classification_req, 5, true },
{ LMP_ESC4(17), "LMP_channel_classification", channel_classification, 10, true },
{ LMP_ESC4(21), "LMP_sniff_subrating_req" },
{ LMP_ESC4(22), "LMP_sniff_subrating_res" },
{ LMP_ESC4(23), "LMP_pause_encryption_req", pause_encryption_req, 0, true },
{ LMP_ESC4(24), "LMP_resume_encryption_req", resume_encryption_req, 0, true },
{ LMP_ESC4(25), "LMP_IO_capability_req", io_capability_req, 3, true },
{ LMP_ESC4(26), "LMP_IO_capability_res", io_capability_res, 3, true },
{ LMP_ESC4(27), "LMP_numeric_comparison_failed", numeric_comparison_failed, 0, true },
{ LMP_ESC4(28), "LMP_passkey_failed", passkey_failed, 0, true },
{ LMP_ESC4(29), "LMP_oob_failed", oob_failed, 0, true },
{ LMP_ESC4(30), "LMP_keypress_notification" },
{ LMP_ESC4(31), "LMP_power_control_req", power_control_req, 1, true },
{ LMP_ESC4(32), "LMP_power_control_res", power_control_res, 1, true },
{ LMP_ESC4(33), "LMP_ping_req", ping_req, 0, true },
{ LMP_ESC4(34), "LMP_ping_res", ping_res, 0, true },
{ LMP_ESC4(35), "LMP_SAM_set_type0" },
{ LMP_ESC4(36), "LMP_SAM_define_map" },
{ LMP_ESC4(37), "LMP_SAM_switch" },
{ }
};
static const char *get_opcode_str(uint16_t opcode)
{
int i;
for (i = 0; lmp_table[i].str; i++) {
if (lmp_table[i].opcode == opcode)
return lmp_table[i].str;
}
return NULL;
}
void lmp_packet(const void *data, uint8_t size, bool padded)
{
const struct lmp_data *lmp_data = NULL;
const char *opcode_color, *opcode_str;
uint16_t opcode;
uint8_t tid, off;
const char *tid_str;
int i;
tid = ((const uint8_t *) data)[0] & 0x01;
opcode = (((const uint8_t *) data)[0] & 0xfe) >> 1;
tid_str = tid == 0x00 ? "Master" : "Slave";
switch (opcode) {
case 127:
if (size < 2) {
print_text(COLOR_ERROR, "extended opcode too short");
packet_hexdump(data, size);
return;
}
opcode = LMP_ESC4(((const uint8_t *) data)[1]);
off = 2;
break;
case 126:
case 125:
case 124:
return;
default:
off = 1;
break;
}
for (i = 0; lmp_table[i].str; i++) {
if (lmp_table[i].opcode == opcode) {
lmp_data = &lmp_table[i];
break;
}
}
if (lmp_data) {
if (lmp_data->func)
opcode_color = COLOR_OPCODE;
else
opcode_color = COLOR_OPCODE_UNKNOWN;
opcode_str = lmp_data->str;
} else {
opcode_color = COLOR_OPCODE_UNKNOWN;
opcode_str = "Unknown";
}
if (opcode & 0xff00)
print_indent(6, opcode_color, "", opcode_str, COLOR_OFF,
" (%u/%u) %s transaction (%u)",
opcode >> 8, opcode & 0xff, tid_str, tid);
else
print_indent(6, opcode_color, "", opcode_str, COLOR_OFF,
" (%u) %s transaction (%d)",
opcode, tid_str, tid);
if (!lmp_data || !lmp_data->func) {
packet_hexdump(data + off, size - off);
return;
}
if (lmp_data->fixed && !padded) {
if (size - off != lmp_data->size) {
print_text(COLOR_ERROR, "invalid packet size");
packet_hexdump(data + off, size - off);
return;
}
} else {
if (size - off < lmp_data->size) {
print_text(COLOR_ERROR, "too short packet");
packet_hexdump(data + off, size - off);
return;
}
}
lmp_data->func(data + off, size - off);
}
void lmp_todo(void)
{
int i;
printf("LMP operations with missing decodings:\n");
for (i = 0; lmp_table[i].str; i++) {
if (lmp_table[i].func)
continue;
printf("\t%s\n", lmp_table[i].str);
}
}